BGS Rock Classification Scheme

Lamproite, olivine-diopside-richterite-madupitic - A type of lamproite. The term madupitic indicates that the rock contains poikilitic groundmass phlogopite, as opposed to a phlogopite lamproite in which the phlogopite occurs as phenocrysts. British Geological Survey Research Report RR/99/06, section 6.5. Synonym: jumillite.

Code LPODRM
Description Lamproite, olivine-diopside-richterite-madupitic - A type of lamproite. The term madupitic indicates that the rock contains poikilitic groundmass phlogopite, as opposed to a phlogopite lamproite in which the phlogopite occurs as phenocrysts. British Geological Survey Research Report RR/99/06, section 6.5. Synonym: jumillite.
Qualifiers olivine   diopside  richterite  madupitic
Definition Exotic crys'ine rock; fors olivine<diop<richterite all 5-20%, poikilitic gnd'mss Ti-phlog/Ti-tetraferriphlog 5-90vol% phenocrystic richtrer/Fe-leuc/sanid, no primary plag/mel/monticell/kals/neph/Na-feld/sodal/nosean/hauyne/melan/schorlom/kimzey; Jumillite
Linked data http://data.bgs.ac.uk/id/EarthMaterialClass/RockName/LPODRM

CAVEAT

"Thumbnail" definitions attached to some of the table entries are an interim attempt to provide simple short descriptions of the "unqualified" rock types presented within the BGS Rock Classification Scheme. Every effort has been made to ensure accuracy and consistency but minor contradictions or omissions might be present. The BGS welcomes any feedback pointing out such minor imperfections and/or providing constructive comment and suggestions for improvement of the definitions. In the first instance such feedback should be directed to Dr Tim McCormick.